Related Clues:
- Fingerprinting fluid
- Stamp pad stuff
- Graphic artists' supplies
- Shirt-pocket stainer
- Prepare, as a press
- Calvin Klein insider to put pen to paper
- Terrible skin leaves indelible marks
- Octopus's release
- Loses the head with relationships as they leave indelible marks
- Octopus's secretion
- What fills a pen
- It fills 21-Down
- Filler for 26-Across
- Filler for a pen
- It fills pens